Alkaline: even created a number of the world's first

After 70 years of development, at present, China has become the world's only alkali method, ammonia method, natural alkali method 3 kinds of soda production methods of the country, and in one fell snr over the United States, become the world's largest producer of soda -
in 1949, when New China was founded, China only Wynn Tong alkali plant and Dalian alkali plant 2 enterprises, the average annual output of only 60,000 tons. In 2018, the domestic soda production capacity has reached 30.39 million tons, the output reached 26.11 million tons. Over the past 70 years, China has become a veritable pure alkali production country and net exporter, leading the world in production technology, and achieved a number of

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As a part of China's traditional industry, the development history of the soda industry has the characteristics of traditional industries: from extreme shortage, to struggle to break through, to rapid expansion, structural overcapacity, under pressure to adjust and shuffle, and through technological innovation to move towards a higher end.
the founding of New China in 1949, production resumed rapidly at the Wynn Tong and Dalian alkali plants, and by 1957 the annual production of soda had increased to 500,000 tons. In 1966, with the delivery of large-scale joint alkali production plant and the completion and commissioning of the Zigong Honghe chemical plant and Qingdao alkali plant, China's soda production exceeded the 1 million tons mark. In the following 11 years, China's original transformation of gas-based alkali technology, the rise and vigorous development of small co-base, natural alkali research and development and production has also made progress. By 1978, China's soda production was 1.329 million tons, but it is still a net importer of soda.
With the reform and opening up, China has built a large number of small ammonia and co-alkali plants on the basis of the annual production of 1.329 million tons of soda, such as Jinchang Benma Agricultural Chemical Co., Ltd. (the predecessor of Jinchang Chemical General Plant) in 1982, the construction of 38,000 tons / year co-alkali method device, Yilian Chemical The natural alkali (sunburn method) dissolving method device built by the Institute's alkali lake science test station (the predecessor of Inner Mongolia Boyuan Holding Group Co., Ltd.) in 1983, and the 40,000-ton/year joint alkali method device built in 1985 by the second fertilizer plant in Meng County (the predecessor of Henan Jinshan Chemical Group), etc., are mostly under 50,000 tons/year.
then, China's soda has been in short supply, every year need to import a large number of. It was not until 1986, when three ammonia plants opened, that this situation was gradually changed. At that time, Shandong Haihua Co., Ltd.'s predecessor Weifang soda plant, Tangshan Sanyou Chemical Co., Ltd.'s predecessor Tangshan alkali plant, Lianyungang Alkaline Co., Ltd.'s predecessor Lianyungang alkali plant respectively started the construction of 600,000 tons / year ammonia alkali method soda plant. In 1989, three units were built and put into operation. At this point, China completely removed the pure alkali net importer's hat. After the rapid growth of domestic soda production, China has gradually become a net exporter of soda.
"Fifth Five-Year" period is the fastest-growing and most stable period for the soda industry. In 2003, China's soda production reached 11.05 million tons, surpassing the United States as the world's largest producer of soda. Since then, the scale of domestic soda enterprises has been expanding. In June 2008, China's first single-stage construction scale reached a million tons of soda project - Jinjing Group Shandong Haitian Biochemical Co., Ltd. 1 million tons / year ammonia alkali method soda project in Shandong Weifang put into operation.
After many years of merger and reorganization and survival of the fittest, by the end of 2017, China has a total of 36 soda enterprises, soda production capacity of 1 million tons / more enterprises reached 12, its production capacity accounted for 65.5% of the total production capacity, industrial concentration significantly increased.
at the same time, China is also the only country in the world with co-alkali method, ammonia method, natural alkali method 3 kinds of soda production methods, the technology continues to make innovation and progress, green development level rapidly improved. In 2002, the soda industry technology was also selected as a major engineering achievement in China in the 20th century, which shows its great contribution to the development of China's industrial field.
, especially since the beginning of the new century, the market has been liberalized and cooperation has deepened, and a large number of soda production technologies in China have gradually reached the world's leading level. For example, in 2000, the new transformation gas base technology through identification, has become a major breakthrough in the industry. In 2004, the 100,000-ton/year co-alkali plant of Zhongzhou Aluminum Plant was put into operation in China for the first time using a belt-type alkali filter to filter heavy alkali, laying the foundation for the application of belt-filtering machine in the industry. In 2009, Jiangsu Jingsin Salinization Co., Ltd. was established, using the domestic first salt-alkali calcium combined cycle production process in stages to build 600,000 tons / year of soda project. During the "Fifth Five-Year" period, large-scale fluidized beds, high-efficiency fluidized beds, bellows heat exchangers and other equipment in the ammonia method were rapidly promoted, and the new external cooling carbide tower alkali technology used in the production of co-alkali method had many advantages, such as energy saving, long life cycle, easy large-scale, low equipment investment and so on.
statistics show that in 2003, the average energy consumption of co-alkali products was 310 kg/tonne, in 2013 it averaged 206 kg/tonne, a decrease of 33.5% over 10 years. In 2014, the soda association organized experts to summarize 22 energy-saving technologies and equipment, including horizontal belt vacuum filter energy-saving technology, powder fluid cool alkali technology, pure alkali device process advanced control technology, as well as centrifuge secondary separation heavy alkali energy-saving production technology, dry method gray energy-saving technology, gas-based alkali conversion and cleaning new process technology, etc., in the industry to promote the application, has achieved good energy-saving results. Today, as China enters a new stage of high-quality development, the soda industry will move towards a new era of high-quality development under the guidance of innovative technology.